Process Control and Instrumentation Which of the following does not figure in the list of seven substances selected for international temperature scale? Antimony and silver (F.P) Ice (F.P) and steam (B.P) Oxygen and sulphur (B.P) Zinc (B.P) and mercury (F.P) Antimony and silver (F.P) Ice (F.P) and steam (B.P) Oxygen and sulphur (B.P) Zinc (B.P) and mercury (F.P) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Resistance of a gas in a vessel is given by (where, P = pressure, V = volume of the vessel, n = no. of moles of the gas, R = gas constant) V/nRT p/nRT nRT/V nRT/P V/nRT p/nRT nRT/V nRT/P ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Time constant is the Time required by the measured variable to reach 63.2% of its ultimate change Time taken by the controlled variable to reach 63.2% of its full change Same as transportation lag Same as dead time Time required by the measured variable to reach 63.2% of its ultimate change Time taken by the controlled variable to reach 63.2% of its full change Same as transportation lag Same as dead time ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Process degree of freedom indicates __________ number of controllers to be used. Both maximum and the minimum The minimum Nothing about the The maximum Both maximum and the minimum The minimum Nothing about the The maximum ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Composition of alloys can be determined by Refractrometer None of these Chromatograph Polarograph Refractrometer None of these Chromatograph Polarograph ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the systems having following transfer functions is stable? 1/(s²+ 2) 1/(s²-2s + 3) Exp(-20s)/(s² + 2s-l) 1/(s² + 2s + 2) 1/(s²+ 2) 1/(s²-2s + 3) Exp(-20s)/(s² + 2s-l) 1/(s² + 2s + 2) ANSWER DOWNLOAD EXAMIANS APP
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